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| 20090016137 | Memory Controller with Programmable Regression Model for Power Control - A memory controller uses a throttling mechanism which estimates a throttling delay for achieving a target power consumption, and periodically blocks all memory commands for a number of clock cycles corresponding to the throttling delay. Idle memory ranks of the memory device are powered down while the memory commands are blocked. A regression model bases the throttling delay on a plurality of operating factors and a plurality of regression coefficients for the operating factors. In the illustrative implementation the operating factors include power consumption, a current number of bank conflicts, a current number of read commands, and a current number of write commands. Different sets of regression coefficients can be programmably stored for use with different system configurations. | 01-15-2009 |
| 20090019243 | DRAM Power Management in a Memory Controller - A memory controller uses a power- and performance-aware scheduler which reorders memory commands based on power priorities. Selected memory ranks of the memory device are then powered down based on rank localities of the reordered commands. The highest power priority may be given to memory commands having the same rank as the last command sent to the memory device. Any memory commands having the same power priority can be further sorted based on one or more performance criteria such as an expected latency of the memory commands and an expected ratio of read and write memory commands. To optimize the power-down function, the power-down command is only sent when the selected memory rank is currently idle, the selected memory rank is not already powered down, none of the reordered memory commands correspond to the selected rank, and a currently pending memory command cannot be issued in the current clock cycle. | 01-15-2009 |
| 20090119470 | Probabilistic Method for Performing Memory Prefetching - A method for preforming memory prefetching is disclosed. A stream length histogram (SLH) is initially generated based on a stream of Read and Write requests intended for a system memory. A determination is then made whether or not to issue a prefetch command after a Read request based on information within the generated SLH. In a determination that a prefetch command should be issued, prefetch command to be sent to the system memory is issued along with other commands. | 05-07-2009 |
| 20090119471 | Priority-Based Memory Prefetcher - A method for preforming memory prefetching and scheduling prefetch commands inside the memory controller is disclosed. A set of prefetch commands is generated based on a stream of Read requests intended for a system memory, and the prefetch commands are stored in a low priority queue (LPQ). A set of regular commands is generated based on a stream of Read and Write requests intended for the system memory, and the regular commands are stored in a centralized arbiter queue. One of the prefetch commands is issued from the LPQ depending on the status of the other queues in the memory controller. | 05-07-2009 |
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| 20080289871 | ADAPTER PLATE ASSEMBLY FOR OUTDOOR INSTALLATION OF NOTIFICATION APPLIANCES - The present invention generally discloses a weatherproof flush adapter plate assembly. In one embodiment, the adapter plate assembly includes a plate. The plate includes a front side, a back side, an outer edge, at least one inner edge, at least one mounting member for receiving a back box and at least one mounting member for receiving a notification appliance. The adapter plate assembly also includes a first gasket coupled to the front side of the plate and a second gasket coupled to the back side of the plate. | 11-27-2008 |
| 20090058672 | MOUNTING PLATE FOR A NOTIFICATION APPLIANCE - A mounting plate assembly for a notification appliance. For example, a mounting plate is designed with at least one aperture for receiving a plurality of leads, e.g., from a backbox. In turn, these leads can be received by a plurality of contacts that are deployed on the mounting plate. In one embodiment, at least two of these contacts are in physical contact with each other at a juncture, thereby providing a connectivity between these two contacts. However, the physical contact at the juncture is non-resetable, i.e., if a force is applied to the juncture, then the connectivity is severed and the physical contact between the two contacts cannot be easily re-establish even if the force is removed. | 03-05-2009 |
| 20100171631 | ADAPTER PLATE ASSEMBLY FOR OUTDOOR INSTALLATION OF NOTIFICATION APPLIANCES - The present invention generally discloses a weatherproof flush adapter plate assembly. In one embodiment, the adapter plate assembly includes a plate. The plate includes a front side, a back side, an outer edge, at least one inner edge, at least one mounting member for receiving a back box and at least one mounting member for receiving a notification appliance. The adapter plate assembly also includes a first gasket coupled to the front side of the plate and a second gasket coupled to the back side of the plate. | 07-08-2010 |
| 20110025523 | MOUNTING PLATE FOR A NOTIFICATION APPLIANCE - A mounting plate assembly for a notification appliance. For example, a mounting plate is designed with at least one aperture for receiving a plurality of leads, e.g., from a backbox. In turn, these leads can be received by a plurality of contacts that are deployed on the mounting plate. In one embodiment, at least two of these contacts are in physical contact with each other at a juncture, thereby providing a connectivity between these two contacts. However, the physical contact at the juncture is non-resetable, i.e., if a force is applied to the juncture, then the connectivity is severed and the physical contact between the two contacts cannot be easily re-establish even if the force is removed. | 02-03-2011 |
| 20120007746 | MOUNTING PLATE FOR A NOTIFICATION APPLIANCE - A mounting plate assembly for a notification appliance is disclosed. For example, a mounting plate is designed with at least one aperture for receiving a plurality of leads, e.g., from a backbox. In turn, these leads can be received by a plurality of contacts that are deployed on the mounting plate. In one embodiment, at least two of these contacts are in physical contact with each other at a juncture, thereby providing connectivity between these two contacts. However, the physical contact at the juncture is non-resettable, i.e., if a force is applied to the juncture, then the connectivity is severed and the physical contact between the two contacts cannot be easily re-established even if the force is removed. | 01-12-2012 |
| 20120040543 | CONTACT COVER AND SHUNT FOR NOTIFICATION APPLIANCE MOUNTING PLATES AND METHOD FOR INSTALLATION - The present disclosure is directed towards a contact cover for a notification appliance mounting plate. In one embodiment, the contact cover includes a plastic body, wherein the plastic body is sized to cover less than an entire surface area of the notification appliance mounting plate, at least one piece of metal, a means for coupling said at least one piece of metal to said plastic body and one or more polarized tabs. | 02-16-2012 |
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| 20110169965 | SYSTEMS, METHODS, AND APPARATUSES FOR DETECTING DIGITAL TELEVISION (DTV) COMMUNICATIONS SIGNALS - Embodiments of the invention may provide systems and methods for detecting the presence a DTV signal such as an ATSC DTV signal. The system and methods may be applied to a received RF signal that has been down-converted to a baseband or low-IF digitized signal. The systems and methods may detect a presence of a DTV signal by searching for its characteristic pilot signal, known to reside in a fixed frequency range for all valid DTV signals. This pilot signal may be extracted by processing the baseband or low-IF signal in multiple stages. The first stage may reduce the signal information to that pertaining to the frequency band covering all valid pilot frequencies and commensurately reduces the sampling rate, and hence computational complexity of subsequent operations. A second stage may then efficiently operate on this reduced rate signal to focus on a series of particular pilot frequencies for interrogation. For each such candidate frequency, the cyclostationarity of the signal may be measured and tested for statistical significance relative to the background energy to yield an effective test that is invariant with respect to the background noise level. In a simplified case, this can correspond to measuring the energy in a very tight candidate subband normalized against the energy from a larger subband. Furthermore, the energy in the candidate subband can be taken as the energy in a Fourier series coefficient. | 07-14-2011 |
| 20110171920 | SYSTEMS, METHODS, AND APPARATUSES FOR REDUCING INTERFERENCE AT THE FRONT-END OF A COMMUNICATIONS RECEIVING DEVICE - Embodiments of the invention may provide for reducing interference in the front-end of a communications receiver. The cancellation circuitry may be utilized in conjunction with a preliminary rejection filter for improved rejection of out-of-band interference from other radio services or circuitry. The cancellation circuit may be placed in parallel with the preliminary rejection filter and may enhance suppression at the interference frequency by matching the gain and phase of the preliminary rejection filter prior to subtracting the matched signal from the preliminary rejection filter output. The cancellation circuit need not necessary know beforehand the characteristics of the preliminary rejection filter, the interference source, or the coupling mechanism, as it may adapt to unknown or varying interferers by adapting the matching gain and phase values based on the output of the preliminary rejection filter at tap points occurring both before and after application of the cancellation signal. | 07-14-2011 |
| 20110171922 | SYSTEMS, METHODS, AND APPARATUSES FOR REDUCING INTERFERENCE AT THE FRONT-END OF A COMMUNICATIONS RECEIVING DEVICE - Embodiments of the invention may provide for reducing interference in the front-end of a communications receiver. The cancellation circuitry may be utilized in conjunction with a preliminary rejection filter for improved rejection of out-of-band interference from other radio services or circuitry. The cancellation circuit may be placed in parallel with the preliminary rejection filter and may enhance suppression at the interference frequency by matching the gain and phase of the preliminary rejection filter prior to subtracting the matched signal from the preliminary rejection filter output. The cancellation circuit need not necessary know beforehand the characteristics of the preliminary rejection filter, the interference source, or the coupling mechanism, as it may adapt to unknown or varying interferers by adapting the matching gain and phase values based on the output of the preliminary rejection filter at tap points occurring both before and after application of the cancellation signal. | 07-14-2011 |
